Value Collection 531138PR M8x1.25 20mm Low Cap Screw

Product Description

The VALUE COLLECTION 531138PR is a low socket cap screw designed for metric fastening applications where a reduced head profile is required. Manufactured from alloy steel with a black oxide finish, this screw meets the SIP 147 fastener standard and carries a material grade of 10.9, indicating high tensile strength suitable for demanding mechanical assemblies. The M8x1.25 thread size and 20mm length under head make it a precise fit for close-clearance installations. It is fully threaded and driven with a 5mm hex key. Machinists, millwrights, maintenance technicians, and equipment assemblers typically install this fastener in production and industrial environments.

This fastener is used in metric mechanical assemblies where standard socket cap head height creates clearance problems or interference. The low-profile head reduces overall stack height without sacrificing the hex socket drive. Common applications include machine frames, fixture plates, tooling setups, and equipment panels where bolt heads must sit flush or near-flush with surrounding surfaces. The black oxide finish provides mild corrosion resistance and reduces light reflection in precision tooling environments. This screw is sold individually but requires a minimum order quantity of 100 units.

Key Features

• Low socket cap head profile for close-clearance and flush-mount applications
• M8x1.25 metric thread, fully threaded along the entire shank
• Alloy steel construction with 10.9 material grade for high tensile strength
• Black oxide finish for mild corrosion resistance and low reflectivity
• 5mm hex socket drive compatible with standard Allen keys and hex bit drivers
• Meets SIP 147 fastener standard

Compatibility

Designed as an OEM-style metric replacement or new-installation fastener for machinery, fixtures, and equipment requiring M8x1.25 low socket cap screws with a 20mm length under head.

Installation Notes

Installation requires a 5mm hex key or hex socket bit driver. De-energize and lock out any machinery before replacing or installing fasteners in mechanical assemblies per applicable LOTO procedures. Apply thread-locking compound or appropriate torque per the equipment manufacturer specification for grade 10.9 fasteners. Inspect mating threads for damage or contamination before installation.